I don't remember seeing "if you elect me I'll destroy NATO, threaten allies, and make sure even USA's oldest allies hate us" as part of the campaign.
Perhaps you could link that promise from the time before the election?
As to your questions, I think people are hoping that rule of law returns and there is an outbreak of common sense. No-one really expected US president will align with Russia and a cult of pseudo-Christian white-supremacist nationalists will worship him as the second coming as an expectation. That the Senate, SC, and tech leaders have fallen in place behind that (the latter literally paying fealty to their god-king) is complete insanity.
I think it's completely expected that the Senate Republicans would do what they were told, and the multi-decade project to stack the Supreme Court with extremists to overthrow Roe v. Wade was something that was very obvious while it was happening.
I would like to remind you of Project 2025. While Trump claimed to know nothing about it prior to being elected, so far he's appointed every editor/contributor to the document/project to his administration and achieved more than half of the stated goals of the document.
I'm sorry but everyone who was paying attention expected exactly that.